Draw-plate for alimentary paste formed into long shapes



Dec. 25, 1956 s. LENNER 2,775,214

DRAW-PLATE FOR ALIMENTARY PASTE FORMED INTO LONG SHAPESzlllllllllllllllllln Filed June 13, 1952 l l l United States PatentOffice 2,775,214 Patented Dec. 25, 1956 DRAW-PLATE FOR ALIMENTARY PASTEFORMED INT O LONG SHAPES Sandro Lenner, Milan, Italy Application June13, 1952, Serial No. 293,252

Claims priority, application Italy June 23, 1951 1 Claim. (Cl. 107-14)With draw-plates or dies for forming alimentary paste into elongatedshapes, such as, spaghetti, macaroni and the like, which have to producea veil of llaments destined to be deposited upon canes or sticks, one ofthe most important problems is constituted by the necessity of obtaininga uniform pressure of the paste upon the perforated plate or mould inorder to obtain a uniform exit speed of the paste from all the bores,that is to say an equal length of all the filaments produced during acertain length of time.

To try to attain this purpose, two solutions have been attempted so far.

The first solution consists in feeding the chamber of the die with aplurality of pipes, which introduce the paste at a number of points ofsaid chamber, along which, therefore, the differences of pressure willresult to be less perceptible than if the long chamber were fed throughone pipe only.

According to another solution, instead of only one mould, a plurality ofmoulds are used, which are placed at a short distance from one anotherin such a manner as to form a row of moulds, to each of which therecorresponds a chamber fed by its own intake pipe. In this way, the exitspeed of the paste from all these small moulds comes to be doubtlessmore uniform than in the first case, but the construction is morecomplicated and costly and the veil of paste presents inevitably someinterruptions.

It is the object of the present invention to provide a die, in which arecombined the advantages coming from the use of one single mould and ofthose deriving from the immediate drawing of the paste coming from eachpipe, without having to rely on a hypothetical equilibrium of pressuresin a long chamber.

'I'he die according to the invention is characterized in that its headcomprises a wall provided with a plurality of partitions terminating inthe proximity of the internal surface of the mould, and which originatea `corresponding number of chambers, each conned by a section of mouldand within each of which there opens one feed pipe, all said pipesissuing from one single compression chamber for the paste.

The accompanying drawing represents a die according to the invention,viz.:

Figure 1 is a longitudinal section,

Figure 2 is a cross section taken on a plane adjacent an end of wall 1whereby the downwardly projecting wall forming a chamber 2 is notvisible,

Figure 3 is a plan view, and

Figure 4 is a section along A-B of Figure 3.

As it can be seen in Figure l,` the rear wall 1 of the mould-carryinghead is made in such a manner as to originate a plurality of chambers 2above the die plate 3; each of said chambers is fed by a pipe 4 and allthe pipes 4 are connected to a conduit 5 from which the compressed pasteis pushed with equal pressure into each of the pipes 4. The plate 3 issupported by the frame 7 secured to the part 1 by means of bolts 6.

Hence all the chambers 2 behave like as many drawheads fed in equalmanner, but there is the advantage that the mould 3 is a single one. Itcan be easily removed by loosening the bolts 6 and removing the piece 7.Plugs 8 are forced in holes in alignment with the pipes 4 and can beremoved for cleaning said pipes.

What I claim is:

A die construction for continuously extruding lilaments of alimentarypaste; said die construction comprising a die plate having a series ofspaced apart openings therein for the extrusion of alimentary pastethrough said openings, a wall disposed above said die plate and havingprojections depending into the proximity of the latter to define aplurality of chambers above said plate with each of said chambersencompassing at least a related one of said openings, a compressionchamber having a circular cross section for receiving alimentary pasteunder pressure, and a pipe extending from each of the aforementionedchambers to said compression chamber for carrying alimentary paste fromthe latter to the related one of said first chambers, said pipes beingof t-he saine cross-sectional area and having their longitudinal centrelines extending from said rst chambers to a plurality of pointssymmetrically arranged on a circumference concentric with the circularcross section of said compression chamber.

References Cited in the file of this patent UNITED STATES PATENTS1,310,509 Specht July 22, 1919 2,083,512 Bauriedel et al. June 8, 19372,308,552 Spinozzi Jan. 19, 1943 2,379,971 Krehbiel July 10, 19452,386,173 Kulp et a1 Oct. 2, 1945 2,481,274 Ambrette Sept. 6, 19492,553,692 Webb May 22, 1951 2,578,492 Simpkins et al Dec. 1l, 19512,679,216 Grondona May 25, 1954

